4421542 has 8 divisors (see below), whose sum is σ = 6651216. Its totient is φ = 2204472.

The previous prime is 4421539. The next prime is 4421567. The reversal of 4421542 is 2451244.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2218 + ... + 3709.

It is an arithmetic number, because the mean of its divisors is an integer number (831402).

Almost surely, 2^4421542 is an apocalyptic number.

4421542 is a deficient number, since it is larger than the sum of its proper divisors (2229674).

4421542 is a wasteful number, since it uses less digits than its factorization.

4421542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6302.

The product of its digits is 1280, while the sum is 22.

The square root of 4421542 is about 2102.7462994855. The cubic root of 4421542 is about 164.1312403767.

Adding to 4421542 its reverse (2451244), we get a palindrome (6872786).

The spelling of 4421542 in words is "four million, four hundred twenty-one thousand, five hundred forty-two".